Control panel with modular design, fully functional, simple structure, and convenient operation. Suitable for use in petroleum, chemical, pharmaceutical, transportation, and food industries for industrial and commercial applications. Unit of measurement settings: In standby mode or during current display, press and hold the CAL + RESET button for 5 seconds to enter unit conversion settings. Press the RESET button to cycle through LTR → GAL → PT → QT → LTR to select the desired unit. The cumulative filling volume will be displayed in the selected unit. Press and hold the MENU key for 3 seconds to exit unit conversion settings. This product requires 2 AAA batteries (included) for convenient use. When the battery voltage drops to 2.2V–2.4V, the display shows "LBat" to indicate low battery and prompt replacement. Color: Blue & White Material: Plastic Model: K24 Compatible media: Methanol, fuel, chemical liquids, urea water Inlet: 1 inch internal thread Measurement accuracy: ±1% Repeatability: ±0.5% Maximum working pressure: 5 BAR Operating voltage: 2.3–3.3V Flow range: 10–90 L/min Single measurement range: 0.00–9999.9 Total cumulative measurement range: 0.00–999999.9 Units available: L, GAL, PT, QT Single measurement reset: RESET button Package Contents: 1 x K24 Turbine Digital Fuel Flow Meter Note: Light reflection and differences in display screens may cause slight variations in the color of the item as shown. Measurement may vary by ±1–3 cm due to manual measurement.